Delta Values

What is the Delta Values feature?

When fitting hearing aids to independent target curves it can sometimes be difficult to assess how far your measurement curve is away from the target curve.

Therefore, we have developed the Delta values feature which enables the Affinity Suite to calculate the difference between your measurement curve and your target curve to make your fitting appointments more efficient. This has been implemented in a manner which preserves the exisiting view you are familiar with in the REM440 module.

Enter your REM module as you would normally.

Connect probe tubes to the REM reference microphones.

Click on the Tube Calibration button and follow the instructions on the screen, this process ensures that the probe tube is made acoustically invisible – enabling an effective display of the actual gain achieved at the tympanic membrane by the hearing aid.

Position the patient approximately 0.5 metres from the REM loudspeaker.

Perform otoscopy to ensure the ear canal is clear.

Place the REM tubes inside the patient’s ears and aim to use a marker of roughly 28mm (female) and 30mm (male) on the probe tubes. This helps to get the open end of the tube in an optimum recording position (BSA, 2018).